センニュウ
Meanings
Noun
Verb (する, intransitive)
1. infiltration; sneaking in; going undercover
We received word that they had infiltrated Japan.
Pitch accent
セ
ンニュウ
Used in vocabulary (2 in total)
intruder; infiltrator
infiltration activities; undercover operation; covert work
Examples (5 in total)
They were conducting an undercover investigation.
We received word that they had infiltrated Japan.
Even though it is called infiltration, it is not that difficult.
I'm told that the soldiers also infiltrated safely.
There's also a risk that the enemy will sneak in, taking advantage of the confusion.